SPRAY PLUME MOVEMENT AS A FUNCTION OF ATMOSPHERIC STABILITY

By

Bradley K. Fritz

Contact:  Dr. Brad Fritz, Agricultural Engineer, USDA-ARS, 2771 F&B Road, College Station, TX 77845  email: bfritz@apmru.usda.gov

 SummaryAtmospheric conditions and stability effects tend to be the most unpredictable yet most dominate forces driving the deposition, movement and ultimate fate of the spray plume.  A series of spray trials were completed under varying atmospheric stability conditions.  Both ground deposition and airborne concentration profiles were measured.  Meteorological data was collected using stationary meteorological stations as well as on-board aircraft instrumentation.  The data collected in this study are used to describe spray plume movement and deposition with changes in wind speed and atmospheric stability.  The results presented in this manuscript will provide guidance to applicators on the effect of changing weather parameters on the fate of the spray plume.

 

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Note:  A copy of the manuscript for this paper is not available at this time.  Please email the author to receive a copy.  bfritz@apmru.usda.gov